Improvement in frames for wire mattresses



Patented July 2, 1872,

G. C. PERKiN'S.

improvement in Frames for Wire-Mattresse".

wincsses.

v d and c and e.

UNITED STATES kGEORGE C. PERKINS, OF HARTFORD, CONNECTICUT.

IMPROVEMENT IN FRAMES FOR WIRE MATTRESSES.

Specification forming part of Letters Patent No. 128,652, dated July 2,1872.

SPECIFICATION.

`To all whom it may concern:

Be it known that I, GEORGE G. PERKINS, of Hartford, in the county ofHartford and State of Connecticut, have invented certain new and usefulImprovements in Frames for Wire Mat tresses; and I do hereby declarethat the folfowing is a full, clear, and exact description thereof,whereby a person skilled in the art can make and use the same, referencebeing had to the accompanying drawing and to the letters of referencemarked thereon.

Like letters in the-figures indicate the same parts.

My invention consists in an improved mechanism for stretching the wirefabric of which the bed-bottom is composed, so that it can be madetighter or looser to suit different persons, and so that the same bedcan be strained to different tensions upon each side to suit persons ofdifferent weights; and in the manner of rounding the corners 'of theframe so that the ffoot of the frame can t more perfectly tothe foot ofthe bedstead as usually made with interior rounded corners.

In the accompanying drawing, Figure lrepresents a top view of a wiremattress with my improved frame. Fig. 2 represents a side view of thesame.

a a are the side pieces of the frame. I) is the head piece. c is thefoot piece. These head and foot pieces or bars are connected at thecorners to the side pieces a a by the corner castings i i and' j j,which are rmly screwed to them, forming a rigid outside frame. d and eare movable bars, connected with the foot piece c by means of thescrew-bolts f f f j", which have a head and washer, h, on the outside ofthe bar c, and work in nuts g let into the bars d and e, so that whenthe screws are turned, they alter the space between c and The web orwire fabric -is attached` to the head piece b and to the bars d and e.It can be made in one piece or sheet, as usual, or it can be made intwo, as shown in the drawing.

By removing the wire fabric from the usual place of fastening on theoutside of the foot bar o I am enabled to make the corners round,

as described, and thereby gain additional space for the foot bar c inbedsteads of the on dinary construction.

The operation of my invention is as follows: i

After a bed is set up ready for use, if it is found that the whole oreither side is too slack or too tight, by applying a wrench to the headsh the screws can be turned to bring it to the exact tension desired.

By means of my invention one side of the bed can be made more yieldingthan the other to suit persons of different weights, or of differenttastes regarding the rigidity of the springs of which the wire mattressis composed. This is done by tightening the screws upon one side, as f'f', more than vthose upon the other, as ff.

By means of my invention a wire mattress can be taken apart and packedin a small space for removal or storing. The wire fabric can be slackedby turning the screws fand f. These can be then taken out and the fabricrolled up on the bars d and e. The frame can then be taken apart byremoving the screws holding the side bars a, and the whole packed in asmall compass. This cannot be done with wire mattresses as usually made,the fabric being stretched over the frame and permanently fixed to it.

To put my improved frame together the reverse of the beforedescribedoperation is gone through with, when the bed is again ready for use withthe tension as perfect as before.

I do not limit the application of my invention to the foot of themattress, as shown in the drawing; but it may likewise be applied to thehead end, if desired.

Claim.

What I claim as my invention is- The combination of the extendingdevices c d c f with a round-cornered frame, when the whole isconstructed and arranged substantially as herein described.

GEORGE C. PERKINS.

Witnesses s THEO. G. ELLIS, BEN. A. COOKE.

